1. Public Health Agency of Canada, Ottawa, Ontario, Canada
2. Alberta Provincial Laboratory for Public Health, Calgary, Alberta, Canada
3. McMaster University, Hamilton, Ontario, Canada
4. Hopital Dr George Dumont, Moncton, New Brunswick, Canada
5. Saskatchewan Disease Control Laboratory, Regina, Saskatchewan, Canada
6. Institut National de Santé Publique du Quebec-LSPQ, Sainte-Anne-de-Bellevue, Quebec, Canada